Viceman666
Well-Known Member
Hello,
While I am finishing up my current grow (1 week since flip to 12/12) in a 4x4, I am looking to add a second tent same size or 4x8 and use the 4x4 for veg only either way I will have 4x8 of space for flowers for my next grow.
Im currently using 4x 304 samsung LED board from alibaba (2 per heatsink). Id like to add a bit more power but since I order from china and shipping cost is high I thought about adding only boards without heatsink (only 25$usd each) to save a bit on the shipping. I was thinking of adding 3 boards at 40-50w (should be able to handle it without heatsink) here is the design I came up with. Because these 3 boards would run at lower power I wanted them closer to the canopy compared to my boards on heatsink however I didnt want those boards to reflect off the back of the lower boards. I used 120 degrees for the samsung led and came up with this design
Top view:
Face view :
Based on my calculation (i had to dig the web to remember how to calculate triangle sides.. ) if I put the lights with heatsink at 20 inches from the canopy.. i could put the 40-50w 10.4inches lower (with a space of 6inches between the boards) so the light from above doesnt bounce on the back of the lower powered boards.. (assuming LED have 120degrees spread)"
The 304 boards im currently using run at 130w each (2 boards on heatsink= 260w) with a hlg-240-c2100 at about 115-117V
So I would probably power the 3 board with hlg-120h-c1050 which should get me about 40w/ boards (115Vx1.05A=120w/3 boards) bringing the total to 660w for each 4x4 space.
Based on all the above, does it make sense? Any other suggestion on the design/ set up, driver selection, layout, etc?
*please dont get in the subject of legit vs chinese light, i cannot care less.
**I considered putting up 12 boards at 50w but 3 boards per 2x2 is an odd number and I would need to design a frame and so on which Id like to avoid, simplier the better..
***following bullet 2 above, strips is a nice option as well but not prefered option as id have to build a frame as well and from what ive calculates would end up probably a bit more expensive
If you have any questions please let me know, any input is very appreciated.
While I am finishing up my current grow (1 week since flip to 12/12) in a 4x4, I am looking to add a second tent same size or 4x8 and use the 4x4 for veg only either way I will have 4x8 of space for flowers for my next grow.
Im currently using 4x 304 samsung LED board from alibaba (2 per heatsink). Id like to add a bit more power but since I order from china and shipping cost is high I thought about adding only boards without heatsink (only 25$usd each) to save a bit on the shipping. I was thinking of adding 3 boards at 40-50w (should be able to handle it without heatsink) here is the design I came up with. Because these 3 boards would run at lower power I wanted them closer to the canopy compared to my boards on heatsink however I didnt want those boards to reflect off the back of the lower boards. I used 120 degrees for the samsung led and came up with this design
Top view:
Face view :
Based on my calculation (i had to dig the web to remember how to calculate triangle sides.. ) if I put the lights with heatsink at 20 inches from the canopy.. i could put the 40-50w 10.4inches lower (with a space of 6inches between the boards) so the light from above doesnt bounce on the back of the lower powered boards.. (assuming LED have 120degrees spread)"
The 304 boards im currently using run at 130w each (2 boards on heatsink= 260w) with a hlg-240-c2100 at about 115-117V
So I would probably power the 3 board with hlg-120h-c1050 which should get me about 40w/ boards (115Vx1.05A=120w/3 boards) bringing the total to 660w for each 4x4 space.
Based on all the above, does it make sense? Any other suggestion on the design/ set up, driver selection, layout, etc?
*please dont get in the subject of legit vs chinese light, i cannot care less.
**I considered putting up 12 boards at 50w but 3 boards per 2x2 is an odd number and I would need to design a frame and so on which Id like to avoid, simplier the better..
***following bullet 2 above, strips is a nice option as well but not prefered option as id have to build a frame as well and from what ive calculates would end up probably a bit more expensive
If you have any questions please let me know, any input is very appreciated.
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